Lock.



No. 678,899. Patented July 23, I90].

0. B. OZMENT. LO-0K.

(Application filed Jan. 8, 1901.)

we "cums versus (to. mom-Lung, wunmm'ou n c UNITED STATES PATENT OFFIOE.

DAVID BREWER OZMENT, OF GAINESVILLE, TEXAS, ASSIGNOR OF TWO- THIRDS TO JAMES M. LINDSAY AND GEORGE \V. LINDSAY, OF SAME PLACE.

LOCK.

SPEGIFIOATION forming part of Letters Patent No. 678,899, dated July 23, 1901.

Application filed January 8, 1901. Serial No. 42,542. (No model.)

To all whom it may concern:

Be it known that I, DAVID BREWER Oz- MENT, a citizen of the United States, residing at Gainesville, in the county of Cooke and State of Texas, have invented a new and useful Look, of which the following is a specification.

This invention relates to looks, and is particularly designed to provide an improved lock for sliding doors. It is furthermore designed to provide an improved seal-lock especially arranged for car-doors and constructed to be automatically locked by the closing of the door and to give the latter an initial start or opening when the lock is beingreleased, so as to facilitate the opening of the door and prevent sticking thereof.

With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the ac companyingdrawings,and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a side elevation of the improved lock in its locked position, parts being broken away to show the interior thereof. Fig. 2 is a similar-view of the unlocked position thereof. Fig. 3 is a transverse sectional view taken on the line 3 3 of Fig. 1 of the drawings.

Like characters of reference designate corresponding parts in all of the figures of thedrawlngs.

Referring to the drawings, 1 designates a fiat attaching-plate for application to the fixed portion of the side of a car 2 at or adjacent to the doorway, which is to be closed by means of a slidable door 3,whicl1 travels toward and away from the attaching-plate. Extending transversely across the outer face of the attaching-plate is a casing or keeper 4,which is open at opposite ends to accommodate the outwardly projecting ends of the slidable trip 5, which is mounted within the top portion of the casing. The opposite ends of this trip-bar are provided with pendent transverse flanges 6 and 7. As best shown in Fig. 3 of the drawings, it will be seen that this bar is broad and flat and has its opposite longitu- 1 dinal edges slidably received within correbracket and a flat tongue 10, which is to slide into and out of the casing of the lock, said tongue being located substantially midway between the top and the bottom of the body, thereby providing the opposite lateral shoulders 11 and 12 to strike the adjacent end of the keeper and limit the movement of the bolt.

Also the shoulder 12 is designed to strike the adjacent end of the trip-bar 5 and force the same inwardly or rearwardly fora purpose a will be hereinafter explained.

To look the bolt within the keeper, there is provided an upright bolt-locking pin.13,which is designed to be dropped down through alined perforations in the top and bottom of the keeper and also in the slidable trip-bar and the tongue of the bolt, whereby the latter is held against being drawn out of the keeper. The lower end of the pin is designed to project below the bottom of the keeper and is provided with a perforation for the reception of a frangible seal 14, thereby conveniently forming a seal-lock.

For the convenient manipulation of the locking-pin to release the same from the tongue there is provided a vertically-swinging releasing or unlocking lever 15,which noro mally lies flat upon the top of the keeper in the locked position of the pin. The rear end portion of the lever is extended upwardly and bowed rearwardly into an angular head 16,

which is reduced laterally, as at 17, so as to 5 be received between a pair of upstanding bearingears 18, rising from the top of the keeper, and is fulcrumed upon a suitable transverse pin 19, carried by the ears. As

shown'in Fig. 3, the upper end of the locking- 10o pin is received within a slot 20, formed longitudinally of the intermediate portion of the The space be- 60 gagement with the tongue of the bolt, so as to free the latter, and the opposite free end of the lever, which has a pendent trip projection or knob 22, strikes against the flange 7 at the rear projecting end of the trip-slide 5, thereby pushing the latter forwardly, so

that its front end projects beyond the keeper and the slot or opening 23 in the trip-slide is disposed in advance of the locking-pin in order that the latter may rest upon the imperforate portion of the slide, and thereby be prevented from accidentally dropping downwardly into the perforations in the top and bottom of the keeper, which would prevent the bolt from again entering the casing. In closing the door the tongue of the bolt first enters the adjacent open end of the keeper, after which the shoulder 12 comes in contact with the front end of the trip-slide 5, thereby pushing the latter rearwardly until the slot or opening therein registers with the lower end of the locking-pin, when the latter drops by gravity and enters the several alined perforations to lock the tongue. It will be observed that as the trip-slide moves rearwardly it pushes against the rear end of the lever, thereby forcing the opposite front end thereof downwardly, so as to insure the prompt dropping of the locking-pin into engagement with the bolt. When the lever is again raised to release the bolt, the rear end of the lever pushes the trip-slide forwardly against the shoulder 12 of the bolt, thereby giving the door an initial shove, so as to open the same to the limit of the play of the slide, thereby facilitating the opening of the door, as considerable power may be applied through the lever to overcome any sticking or binding of the door.

To permit of the lock being unlocked from the interior of the car, there is provided an operating cord or chain 24, which is connected to the forward free portion of the lever and passes inwardly through an opening 25 in the adjacent side of the car, so that the cord may be pulled to elevate the lever and thereby release the look without aid from the exterior of the car.

It will be understood that the present lock is more in the nature of a latch than a keyoperated look, as it is merely intended to prevent the door from becoming accidentally opened, and a seal is employed to indicate when the door has been opened.

What is claimed is-- 1. The combination with a keeper, of a bolt for engagement therewith, a bolt-locking pin for engagement with the bolt when in the keeper, an unlocking-lever for the pin, an oppositely-movable pin-supporting trip for holding the pin in its unlocked position and located in the path of the inward movement of the bolt to be tripped thereby in one direction, and a trip-resetting device carried by the lever and constructed to move the trip in the opposite direction by the pin-unlocking movement of the lever.

2. The combination with a keeper, a bolt, and a bolt-locking device for the bolt when in the keeper, of unlocking means for said device, a bolt-actuated .trip for the support of the bolt-locking device in its unlocked position, and means for resetting the trip by the actuation of the unlocking means.

3. The combination with a keeper, a bolt, and a bolt-locking device for locking the bolt in the keeper, of a bolt-actuatedoppositelymovable trip for the support of the said device in its unlocked position and located in the path of the inward movement of a portion of the bolt, an unlocking device for the bolt-locking device, and means for resetting the trip by the unlocking movement of the unlocking device, the bolt and the trip being in operative relation to force the former out of the keeper by the resetting movement of the latter.

4. The combination with a keeper, a bolt, and a bolt-locking device for the bolt when in the keeper and which is normally supported in its unlocked position, of means for automatically tripping the said device by the inward movement of the bolt, an unlocking device for the bolt-locking device, and means for resetting the tripping means and for forcing the bolt out of the keeper by the actua tion of the unlocking device.

5. The combination with a keeper, a bolt, and a locking device for the bolt when in the keeper, of an unlocking device for the looking device, and means for automatically forcing the bolt out of the keeper by the actuation of the unlocking device.

6. In a look, a keeper having a perforation, a slidable bolt having a perforation for alinement with that of the keeper, an endwisemovable bolt-locking pin constructed to enter alined perforations of the keeper and bolt, an oppositely-slidable pin-supporting bolt-actua-ted trip mounted upon the keeper, a pinunlocking lever fulcrumed intermediate of its ends upon the keeper, the pin being connected thereto at one side of the fulcrum thereof, and a trip-resetting device carried by the opposite rear portion of the lever and constructed to strike the trip and reset the same by the unlocking movement of the lever.

7. In a look, a keeper, a bolt, an oppositelymovable bolt-locking device for the bolt when in engagement with the keeper, an endwiseslidable supporting-trip for the bolt-lock and projected at opposite ends beyond the keeper, the front end of the trip being in the path of the inward :movement of the bolt, a pivotal unlocking device for the bolt-lock, and a tripresetting device carried by the unlocking device, the opposite rear end of the trip being in the path of the resetting device during the unlocking movement of the unlocking device.

8. In a lock, an openended keeper having a top perforation, a slidable bolt to enter one end of'the keeper, a lever fulcrumed intermediate of its ends upon the top of the keeper, a pendent locking-pin loosely hung from the forward portion of the lever and constructed to enter the top perforation of the keeper and interlock with the bolt, an endwise-slidable pin supporting trip mounted Within the keeper With its opposite ends alternately proj ected outwardly through the open ends thereof, and also provided with an intermediate perforation for alinement with that of the keeper and to receive the pin, and a tripresetting lateral projection upon the rear end of the lever, the rear end of the trip when projected lying in the inward path of the resetting projection, and the opposite end of the trip when projected lying in the inward path of the bolt.

9. A seal-lock, comprising a keeper, having an entrance-openin g, and transversely-alined perforations,a bolt to enter the entrance-opening and having a perforation to be alined between those of the keeper, a locking-pin to pass through the alined perforations and project at opposite ends beyond the keeper, an unlocking-lever fulcrumed upon the keeper and connected to the adjacent end of the locking-pin, the opposite projected end of the pin being capable of receiving a sealing device.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

DAVID BREWER OZMENT.

Witnesses:

L. B. LINDSAY, F. H. SHERWOOD. 

